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本文通过向量的向量积给出了求三角形面积的一个新方法,这种方法简单、机械的,所得公式便于记忆,不需要借助太多的经验技巧,有一定的实用价值。
In this paper, a new method for the area of triangles is given by the vector product of vectors. This method is simple and mechanical, and the formula obtained is easy to memorize. It does not require much experience and skill, and has certain practical value.